Multiple Choice
Which of the following reactions occurs to a measurable extent in water?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Which of the following compounds is soluble in water?
A
NaNO_3
B
PbSO_4
C
BaSO_4
D
AgCl
Verified step by step guidance1
Recall the general solubility rules for ionic compounds in water, which help predict whether a compound will dissolve.
Note that most nitrates (NO_3^-) are soluble in water without exception, so NaNO_3 is expected to be soluble.
Recognize that sulfates (SO_4^{2-}) have varying solubility: while many are soluble, PbSO_4 and BaSO_4 are known to be poorly soluble or insoluble in water.
Understand that most chlorides (Cl^-) are soluble, but silver chloride (AgCl) is an important exception and is considered insoluble in water.
Based on these rules, identify NaNO_3 as the compound that is soluble in water among the given options.
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